from pathlib import Path
from typing import Any, Optional

from fastapi import APIRouter, Body, Query, Request
from fastapi.responses import JSONResponse
from fastapi.templating import Jinja2Templates
from pydantic import BaseModel, Field

from app.services.analytics_data import add_finding, collect_analytics, list_hermes_findings

router = APIRouter(prefix="/analytics", tags=["analytics"])
BASE_DIR = Path(__file__).resolve().parent.parent.parent
templates = Jinja2Templates(directory=str(BASE_DIR / "templates"))


class FindingIn(BaseModel):
    kind: str = Field(default="insight", description="win|opportunity|attention|insight")
    title: str
    body: str = ""
    score: float | None = None
    source: str = "hermes"
    href: str | None = None
    meta: dict[str, Any] | None = None


@router.get("")
async def analytics_page(request: Request):
    initial = collect_analytics({})
    return templates.TemplateResponse(
        "analytics.html",
        {"request": request, "page_title": "Analytics", "initial_data": initial},
    )


@router.get("/api/data")
async def analytics_api(
    chain: Optional[str] = None,
    province: Optional[str] = None,
    stage: Optional[str] = None,
    agent: Optional[str] = None,
    days: int = Query(90, ge=7, le=365),
):
    filters = {"chain": chain, "province": province, "stage": stage, "agent": agent, "days": days}
    return JSONResponse(collect_analytics(filters))


@router.get("/api/findings")
async def analytics_findings(limit: int = Query(20, ge=1, le=100)):
    return {"items": list_hermes_findings(limit)}


@router.post("/api/findings")
async def analytics_findings_create(payload: FindingIn = Body(...)):
    """Hermes (of admin) kan bevindingen pushen naar het intelligence dashboard."""
    row = add_finding(
        kind=payload.kind,
        title=payload.title,
        body=payload.body,
        score=payload.score,
        source=payload.source,
        href=payload.href,
        meta=payload.meta,
    )
    return {"ok": True, "finding": row}